IMPROVEMENTS IN OR RELATING TO MAGNESIUM BASE ALLOYS

Patent · Wed Jul 18 04:00:00 EDT 1962

OSTI ID:4800216

Fisher, P A; Emley, E F

A method was developed for incorporating both zirconium and aluminum in a magnesium alloy in such a manner as to obtain a fine grain size even with less than 2% aluminum present. Wrought articles were produced from this alloy that are resistant to grain growth at elevated temperatures. It was found possible to include other zirconium precipitating elements instead of or in addition to aluminum. Preparation consisted of the flowing together of two streams of molten magnesium-base alloys one of which included the zirconium-precipitating element or elements and the other which includes zirconium, casting the combined stream, and chilling it quickly. By this means at least some of the solid crystal nuclei derived from the molten zirconium alloy remain undissolved and so initiate crystallization and at least some of the precipitated zirconium-compound particles are retained in suspension in the alloy. (M.C.G.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-027578
• OSTI ID: 4800216
• Report Number(s): GB 901325
• Country of Publication: United Kingdom
• Language: English

Related Subjects

ALUMINUM ALLOYS
CRYSTALS
GRAIN SIZE
LIQUID METALS
MAGNESIUM ALLOYS
METALS, CERAMICS, AND OTHER MATERIALS
PREPARATION
STABILITY
SUSPENSIONS
ZIRCONIUM ALLOYS